horsch Leeb 4 AX, Operating Instructions Manual

Page: 99 / 161

Folding boom control
WARNING
Danger of crushing and impact for persons
staying in the danger zone when lifting or
lowering for height adjustment of the spray -
ing boom!
Instruct persons to leave the danger zone
around the machine before lifting or lowering
the spraying boom by means of the height ad-
justment.
NOTE
Adjust the spraying height (distance between
nozzles and crop) as per currently applicable
guidelines.
Always adjust the spraying boom parallel to the
ground, because the specified spraying height
can only be achieved in this condition.
Control and regulation of
spraying functions
Spraying pressure, nozzle size, placing
quantity, travel speed, agitator
The spraying mixture container is empty when
the spraying pressure suddenly drops signifi -
cantly.
Should the spraying pressure drop under oth-
erwise unchanged conditions, the suction or
pressure filters are blocked.
Spraying pressure and nozzle size have an
influence on the drop size and the sprayed out
fluid volume.
The higher the spraying pressure, the smaller
the drop diameter of the sprayed spraying mix-
ture. The smaller droplets are subject to higher,
undesired windward drift!
¾
Increasing the spraying pressure also in-
creases the placing quantity.
¾
Decreasing the spraying pressure also
reduces the placing quantity.
Increasing the travel speed while leaving both
nozzle size and spraying pressure unchanged,
reduces the placing quantity.
Reducing the travel speed while leaving both
nozzle size and spraying pressure unchanged,
increases the placing quantity.
The travel speed is freely selectable, based
on the automatic, area-related placing quantity
control via the spraying computer.
The agitator normally remains switched on from
filling to the end of spraying. Observe the regu -
lations and notes of the crop protection agent
manufacturer.
Example:
Required application quantity: 200 l/ha
Intended
Travel speed: 8 km/h
Nozzle type: AI / ID
Nozzle size: 03
Permissible pressure range
of the installed spraying nozzles:
3 bar (min.) -
8 bar (max.)
Intended spraying pressure: 3.7 bar
Permissible spraying pressures: 3.7 bar ±25%
2.8 bar (min.) -
4.6 bar (max.)
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